Come join us for the Third Annual Year of the Big River Race!
Saturday, May 30th, 2026 for a Half Marathon, 10k, 5k & FREE Fun 1 Mile. Run along one of Eastern Washington's biggest landmarks, the Columbia River. Enjoy a scenic route on paved riverfront trail. This race offers you four different options; a distance for everyone in the family, group of friends or coworkers. The course will be flat & fast! Perfect for your first time to achieve one of these distances or set a new personal goal. The race will start & end at beautiful Chiawana Park (west end of the park) in Pasco, Washington. Chiawana is a Native word for “Big River”.
The Columbia River has provided this region's culture and economy for thousands of years. It is the largest river in the Pacific Northwest. The river forms in the Rocky Mountains of British Columbia, Canada and flows through Washington. This Big River irrigates more than 6,000,000 acres of agricultural land. Agriculture is huge part of our community and is possible because of this valuable water source. The race course will have fun, themed aid-stations, cheer squads & music along the way. You run the miles, we bring the entertainment and support! We believe your achievements should be celebrated. Invite all the friends and family to come watch you cross the finish line! Chiawana Park as beautiful shade trees, a big grassy park and a gorgeous view of the river. After the race sit, relax and enjoy some post race treats.
Our race values come from the meaning: Chiawana •compassion • creativity • reliability • generosity • loyalty
Races Offered
EARLY START Half Marathon
May 30, 2026
straighten
Distance —
13.1 Miles
terrain
Type —
Running
timer
07:00
sell
$55.00
Big River Half Marathon
May 30, 2026
straighten
Distance —
13.1 Miles
terrain
Type —
Running
timer
08:00
sell
$55.00
Big River 10k
May 30, 2026
straighten
Distance —
6.2 Miles
terrain
Type —
Running
timer
08:15
sell
$35.00
Big River 5k
May 30, 2026
straighten
Distance —
3.1 Miles
terrain
Type —
Running
timer
08:20
sell
$20.00
Big River FREE 1 mile
May 30, 2026
straighten
Distance —
1 Miles
terrain
Type —
Running
timer
09:30
sell
$0.00
Big River 10k
May 30, 2026
straighten
Distance —
6.2 Miles
terrain
Type —
Running
timer
13 days remaining
sell
$30.00
Big River 5k
May 30, 2026
straighten
Distance —
3.1 Miles
terrain
Type —
Running
timer
13 days remaining
sell
$20.00
Big River FREE 1 mile
May 30, 2026
straighten
Distance —
1 Miles
terrain
Type —
Running
timer
13 days remaining
sell
$0.00
Big River Half Marathon
May 30, 2026
straighten
Distance —
13.1 Miles
terrain
Type —
Running
timer
13 days remaining
sell
$45.00
EARLY START Half Marathon
May 30, 2026
straighten
Distance —
13.1 Miles
terrain
Type —
Running
timer
13 days remaining
sell
$55.00
Weather History
These values represent the 3-year monthly averages for May in Pasco.
thermostatTemperature
11.8° / 25.3°
wb_sunnyFeels like
8.9° / 21.6°
light_mode
Avg sunshine hours
12h 36m
water_drop
Avg rainfall
0.5 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
10.5 km/h (Light breeze)
opacity
Sweat loss rate
Moderate
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (4.2)
humidity_mid
Humidity
41.3%
wb_twilight
Sunrise
05:22
nightlight
Sunset
20:23
About Pasco
Learn more about the host city, Pasco.
Pasco is a city in the Columbia River Plateau in Washington State, roughly between the Yakima and Snake Rivers on the north bank of the Columbia.
